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A stair tread is the horizontal portion of a set of stairs on which a person walks. The tread can be composed of wood, metal, plastic, or other materials. In residential settings, treads can be covered in carpeting. Stair treads can come in non-slip varieties, particularly in commercial or industrial locations. [1]
The nosing is the protrusion beyond the riser when vertical risers are used, or beyond the back of the tread below, when angled risers or no risers are used. Anti-slip strips or nosings may be applied. These stair parts can be manufactured from a variety of materials including aluminum, vinyl, and wood.
Riser-Tread formula: Sometimes the stair parameters will be something like riser plus tread equals 17–18 inches (432–457 mm); [38] another formula is 2 times riser + tread equals 24.6 inches (625 mm), the length of a stride. [14]
The Fort Worth skyline as viewed from the west. Fort Worth, the 5th-most populous city in the U.S. state of Texas, is home to 50 high-rises, 21 of which stand taller than 200 feet (61 m). [1] The tallest building in the city is the 40-story Burnett Plaza, which rises 567 feet (173 m) in Downtown Fort Worth and was completed in 1983. [2]